Department of Imaging, Mark Taper Imaging Center, Cedars Sinai Medical Center, 8700 Beverly Boulevard, Taper M335, Los Angeles, CA 90048, USA; Smidt Heart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA.
Interv Cardiol Clin. 2024 Jan;13(1):19-28. doi: 10.1016/j.iccl.2023.08.006.
Transcatheter left atrial appendage occlusion (LAAO) is an alternative to systemic anticoagulation in patients with non-valvular atrial fibrillation with increased risk for thromboembolic events. Pre- and post-procedural imaging is essential for technical success, allowing practitioners to identify contraindications, select appropriate devices, and recognize procedural complications. Although transesophageal echocardiography has traditionally served as the preeminent imaging modality in LAAO, cardiac computed tomography imaging has emerged as a noninvasive surrogate given its excellent isotropic spatial resolution, multiplanar reconstruction capability, rapid temporal resolution, and large field of view.
经导管左心耳封堵术（LAAO）是一种替代全身抗凝的方法，适用于非瓣膜性心房颤动且有血栓栓塞事件高风险的患者。术前和术后的影像学检查对于技术成功至关重要，可让术者识别禁忌证、选择合适的器械，并识别手术并发症。尽管经食管超声心动图一直是 LAAO 中卓越的影像学方式，但心脏计算机断层成像（CT）已成为一种非侵入性替代方法，因其具有极好的各向同性空间分辨率、多平面重建能力、快速时间分辨率和大视场。
